Process of making colored paper



L. P. WINCHENBAUQH AND L. GENTILE.

4 PROQESS O F MAKING COLORED PAPER APPLICATION FILED PEC.28, 1920.

' JFZ E 3 7 mm A? hmw i Patented July 12,1921.

produce the UNITED STATES PATENT OFFICE.

' LESTER P. WIN CHENBAUGH, OF HYDE PARK, AND LAWRENCE GENTILE, OF MELROSE,

' MASSACHUSETTS.

PROCESS OF MAKING COLORED PAPER.

Specification of Letters Patent.

Patented July 12, 1921.

Application filed December 28, 1920. Serial No. 433,619.

To all whom it may concern Be it known that we, LESTER P. WINCH- 'ENBAUGH and LAWRENCE GENTILE, citizens per, of which the following is a clear, full,-

and exact description.

This invention relates to a process of making colored paper.

The principal object of the invention is to provide an improved process of making colored paper by which new and highly artistlc designs and'ornamental effects may be produced.

With the above object in View, the invention consists in a process involving the novel features hereinafter described and particularly pointed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the art.

In the drawings, Figure 1 is a view in sectional elevation of an apparatus which may be advantageously employed in carry ing out the present process; and

Fig. 2 is an underside plan view of a portion of this apparatus.

In accordance with certain, features of the present process, a finished paper which varies in thickness at different points is employed. The relatively thick and thin spots or areas in the paper may form a regular design or have an irregular arrangement and such areas may be formed by watermarking the paper or may be dueto an irregular, uneven or lumpy formation given to the paper in the process of manufacture or they may be produced in any other suitable or convenient manner.

In coloring paper of this character, to desired ornamental effects, a coloring liquid which will penetrate or strike into the substance of the paper is employedand this coloring liquid is applied to one side of the paper in a regulated quantity sufiicient to cause the same to strike completely through the paper at the thin spots or areas therein but preferably so that it will not strike through the thick spots. This will give an ornamental effect on the side of the paper opposite that to which the coloring liquid is applied depending upon the formation and arrangement of the thick guide bars and as above described, the

and thin spots. Ordinarily where the paper I is watermarked, the design of the watermark will show distinctly on the latter side of the paper in the color which has been applled. Where the paper has an irregular or lumpy formation above described, the latter side of the paper will have a cloudy, mottled or irregularly colored surface, the edges of the heavily colored areas gradually fading into the areas having little or no coloring, thus giving a very artistic effect.

a The coloring liquid may be conveniently applied to the paper inthe manner described by means of the apparatus illustrated in Figs. 1 and 2. ThlS apparatus comprises a container 2 for the coloring liquid consisting of a pipe provided with color delivery openings as indicated at 4 to which the coloring liquid is supplied in any suitable manner. To guide the paper and hold the same in proper contact with the container, guide bars 6 arranged on opposite sides of the container are 'provided.

he paper is passed alternately over the under the container pipe so that the pipe forms a bight or loop in the paper and the paper passes partially about the lower portion or face of the pipe'where the delivery openings are formed. With this apparatus, as the paper is drawn past the color delivery pipe 2, the coloring liquid may be deposited on the paper in quantity sufficient to cause the same to strike completely through the paper at least at the thin areas thereof. The coloring ,liquid The coloring liquid may be applied over substantially the whole surface of the paper on one side thereof, or it may be applied to certain localized areas according to the effect desired.

' Where the coloring liquid is applied to the paper by means of a color delivery pipe amount of the colorlng liquid deposited on the paper maybe the paper is moved past the pipe, the greater regulated by regulating the speed at which the speed of the paper, the less the quantity of the coloring liquid deposited on the paper.

The coloring liquid employed should be such that it will rapidly penetrate Or strike into the paper and will dry quickly leaving substantially no deposit on the surface of paper. A solution of an anilin dye in alcohol, gasolene or similar solvent has loeen found in actual practice to give highly satisfactory results. W hen a dye solution of this character is used, the penetration of the dye may be regulated by adding a predetermined quantity or? water to the solution, the addition of water reducing the penetration of the dye solution.

The quantity of the coloring liquid applied to the paper may he so regulated that the liquid will strike through the paper at all points. The thin areas, however, where the liquid strikes through to the greatest degree will then have the strongest coloring, while-the color will be weaker or paler at the thick spots. V

lnstead ot a paper having relatively thick and thin areas, a paper which is of substantially the same thlckness at all points, but in which certain areas will allow the coloring liquid to penetrate more readily than other areas as, for example, a paper in which the structure of the paper is denser at certain points than others, may be employed in the present process. When a paper of this character is used the coloring liquid is applied to one side of the paper in a regulated quantity so that it will strike through the paper at least at the areas which allow the liquid to penetrate most readily. The quantity of the coloring liquid applied to the paper may he so regulated that the liquid will strike through the paper at all points or that it will not strike through at the areas which allow the liquid to penetrate less readily. Thus, there will be produced upon the side of the paper opposite that to which the colnaeaaeo oring li uid is applied, designs or ornamental efiects similar to those produced when a paper varying in thickness at difl'erent points is employed,

Having explained the nature and object of the invention, and having described the manner in which the invention may be applied, what is claimed is:

l. A process of making colored paper which comprises taking a paper which varies in thickness at different points therein and applying to one side thereof apenetrative coloring liquid in regulated quantity suilicient to cause the same to strike through the paper at least at the thin points therein.v

2. A process of making colored paper which comprises taking a paper having a watermark therein and applying to one side thereof a penetrative coloring liquid in regulated quantity sutlicient to cause the same to strike throp h the paper where the watermark is torme 3. A process of making colored paper which comprises taking a penetrative coloring liquid and a paper certain areas of which will allow the coloring liquid to penetrate more readily than others, and applying the coloring liquid to one side of the paper in regulated quantity sufficient to cause the same to strike through the paper at least at the areas which will allow the liquid to penetrate most readily.

Signed at Boston, Mass, this 22nd day of December, 1920.

LESTER 1P. WINCHENBAUGH. LAWRENCE GENTTLE.

Witness: E. D. ConnNEY. 

